Step by step on HDR on NIKON D90?

Is there a way on the d90 where I can press it once without manually having to press the shutter three times?
step by step would be very helpful thanks

Added (1). I don't want a shortcut, I know that some cameras will take three images in one go. So thought Nikon d90 could do that.

Yes, you can set your self-timer to take several shots in succession. Somewhere in the menu you can set the self timer options, there's the self timer delay and also this number of photos to be taken. Set it to three shots. You can then combine this with bracketing. Make sure that the cameera is in aperture priority mode though (so the aperture stays the same and the exposures are varied through the shutter speed, not aperture), with ISO auto off. Also shoot RAW. Also activate mirror lock up in the menus.

Take the RAW image (if you are shooting in RAW) and process in photoshop to make under and over exposed images and combine…

failing that, try to be less lazy and take three shots…